My version is the Steam one and my OS is Windows 7 64 bits (but the previous versions worked fine)

the new trainer is working for me also, running vista 64 steam version, try downloading it again and give it another crack

This is a problem you need to resolve with Symantec's customer service (not us). We have no control how their program runs. Their product documentation will probably tell you how to deal with false positives better than we can.

[Edited by Neo7, 1/12/2012 11:06:32 AM]